Magnetic core scanning arrangement for electronic telephone switching system



GUERCIO ETAL May 31, 1966 A, M 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet l Filed Jan. 9, 1965 /A/I/E/voRs A M GUERC/O ATTORNEY My'sl, 1966 A. M. GuERclo ETAL 3,254,157 MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 2 Filed Jan. 9, 1963 A. M. GUERclo ETAL 3,254,157 MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 5 Filed Jan. 9, 1963 GUERCIO ETAL MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM May 31, 1966 24 Sheets-Sheet 4 Filed Jan. 9, 1965 May 31, 1966 A. M. GUERclo ETAL 3,254,157

MAGNETIC CORE SCANNINC ARRANCEMENT FCR ELECTRONIC TELEPHONE swITCHINC SYSTEM Filed Jan. 9, 1965 24 Sheets-Sheet 5 May 31, 1966 A. M. GUERclo ETAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 6 Filed Jan. 9, 1963 FSS- SQ A. M. GUERclo ETAL 3,254,157 MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE .May 31, 1966 SWITCHING SYSTEM 24 Sheets-Sheet 7 Filed Jan. 9, 1963 24 Sheets-Sheet 8 A. M. GUERCIO ETAL swITcHING SYSTEM May 31, 1966 MAGNETIC CORE SCANNING AERANGEMENT FOR ELECTRONIC TELEPHONE Filed dan. 9, 1963 mn .NRE mwwv RG@ ESE .RSS #m3 Erw 5w A l 9|||||||||||h i I I I I I I I I I I l l I I I I I I I I l 'I9 9 m h w Qm w Il' @55% Si 3 Qomm wmolwwk Hw H w H M m 0 l m m w w ma@ S 5 5 l n 0 QP ce? is@ lll o H n a w m a d a 9 w w May 31, i966 A. M. GuERclo ETAL l 3,254,157

MAGNETIC CQRE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM Filed Jan. 9, 1965 2,4 Sheets-Sheet 9 I D May 31, i966 A. M. GUERGG ETAL MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 10 Filed Jan. 9, 1963 @mx QS. 3,33

A. M. GUERclo ETAL 3,254,157

SWITCHING SYSTEM 24 Sheets-Sheet 1f..

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE May 3l, 1966 E-led Jan. 9.

May 31, 966 A. M. GUERclo ETAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM Filed Jan. 9, 1965 May 31, 1966 M. GuERclo ETAL MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 sheets-sheet 1s Filed Jan. 9, 1963 May 31 T966 I A. M. GuER-cxo ETAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM Filed Jan. 9, 1963 24 Sheets-Sheet 14 DETECTOR AMPL/F/ERS L EFT 0U TPI/ DETECTOR AMPL/F/ERS DE TE C TOR AMP/ /F/ERS 83/ 1//7dWV 80.13.7130

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DETECTOR AMPL/F/ER My 3L V'1966 EPHONE A. M. GUERCIO ETAL MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TEL SWITCHING SYSTEM Filed Jan. 9, 1963 {Mdy 3L T966 A. M. GUERCIO ETAL MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE' SWITCHING SYSTEM 24 Sheets-Sheet 16 Filed Jan. 9, 1965 MMJDR May 31, '1966 A. M. GuERclo ETAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM Filed Jan. 9, 1963 24 Sheets-Sheet 1? UK/B LEF 7' ACCESS ADDRESS PULSE STRETCHE/PS ADDRESS PULSE STRE rcHERs May 31 '1966 l A. M. Gul-:recio l-:TAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM May 31, '196 MAGNETIC CORE Filed Jan. 9, 1963 A. M. lGUERclo ETAL SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 19 v TO SCANNER ANSWER BUS May 31 1966 A. M. GUERCI ETAL 3,254,157

MAGNETIC CORE SCANNING ARRANGEMENT FOR ELECTRONIC TELEPHONE SWITCHING SYSTEM 24 Sheets-Sheet 2O Filed Jan. 9, 1963 

14. IN A SCANNING ARRANGEMENT HAVING A PAIR OF SERIALLY CONNECTED MAGNETIC CORE MATRIX SWITCHES FOR INTERROGATING ROWS OF FERROD MONITORING DEVICES, THE COMBINATION ACCORDING TO WHICH EACH CORE MATRIX INCLUDES A PLURALITY OF INDIVIDUALLY-ADDRESSABLE ROW SELECT AND COLUMN SELECT WINDINGS, A NORMAL BIAS LOOP FOR APPLYING A BIAS TO OPPOSE THE EFFECT PRODUCED BY THE ADDRESSING OF ANY SAID SELECT WINDINGS, A SOURCE OF EMERGENCY BIAS, AND A RELAY HAVING A WINDING IN SAID BIAS LOOP AND CONTACTS ASSOCATED WITH A ROW SELECT WINDINGS AND SAID SOURCE OF EMERGENCY BIAS, SAID RELAY BEING RELEASABLE TO SERIALLY CONNECT SAID ROW SELECT WINDINGS WITH SAID SOURCE OF EMERGENCY BIAS TO APPLPY AN EMERGENCEY HAVING AN EFFECT OPPOSITE TO THAT PRODUCED BY SAID FIRST-MENTIONED BIAS-. 